std::complex

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Complex numbers
Template:cpp/numeric/complex/sidebar content

Defined in header <complex>
template<class T> class complex; //not defined	(1)
template<> class complex<float>;	(2)
template<> class complex<double>;	(3)
template<> class complex<long double>;	(4)

The specializations std::complex<float>, std::complex<double>, and std::complex<long double> are literal types for representing and manipulating complex number. The effect of instantiating the template complex for any other type is unspecified.

[edit] Member types

Member type	Definition
value_type	T

[edit] Member functions

(constructor)	constructs a complex number (public member function)
real	gets/sets real part of the complex number (public member function)
imag	gets/sets imaginary part of the complex number (public member function)
operator=	replaces the complex number with another (public member function)
operator+= operator-= operator/= operator*=	compound assignment of two complex numbers or a complex and a scalar (public member function)

[edit] Non-member functions

operator+ operator-	applies unary operators to complex numbers (function template)
operator+ operator- operator* operator/	performs complex number arithmetics on two complex values or a complex and a scalar (function template)
operator== operator!=	compares two complex numbers or a complex and a scalar (function template)
operator>> operator<<	serializes and deserializes a complex number (function template)
real	returns the real component (function template)
imag	returns the imaginary component (function template)
abs	returns the magnitude (function template)
arg	returns the phase angle (function template)
norm	returns the squared magnitude (function template)
conj	returns the complex conjugate (function template)
proj	returns the projection onto the Riemann sphere (function template)
polar	constructs a complex number from magnitude and phase angle (function template)
acos asin atan acosh asinh atanh cos cosh sin sinh tan tanh	complex number trigonometric functions (function template)
exp	complex base e exponential (function template)
log	complex natural logarithm with the branch cuts along the negative real axis (function template)
log10	complex common logarithm with the branch cuts along the negative real axis (function template)
pow	complex power, one or both arguments may be a complex number (function template)
sqrt	complex square root in the range of the right half-plane (function template)